Question

why is the earth called blue planet​

Answer 1

Composition and Structure of the Oceans. Planet Earth has been called the "Blue Planet" due to the abundant water on its surface. Here on Earth, we take liquid water for granted; after all, our bodies are mostly made of water. However, liquid water is a rare commodity in our solar system.

Answer 2

Because from the sky the sun shines and sky looking blue got reflected on oceans and it is green planet